Re: Howto add raw printer

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On 06/23/2010 07:34 PM, Tim Waugh wrote:
> On Wed, 2010-06-23 at 19:23 +0800, Ed Greshko wrote:
>   
>> I think it should be pointed out when this is useful.  If one has a
>> postscript file you'd use this to send it to the printer rather than
>> printing the postscript file itself...for example.  Yes?
>>     
> Not really.  More the opposite actually.  If you have a printer that is
> *not* PostScript capable, and you want to see the actual PostScript
> commands, you could send the PostScript file to a raw queue for the
> device to achieve that.  Otherwise CUPS will filter it into the actual
> page described *by* the PostScript.
>
> It's useful if, say, you have an application that produces PCL3 output
> for your specific printer, and you don't want CUPS to try to work out
> what to do with it in case it gets it wrong.
>
> It is sometimes useful to diagnose printing problems as well.  If you
> have a queue with a PostScript driver (i.e. a filter), and things are
> printing out correctly, you can send some PostScript as a raw job (or to
> a raw queue) to bypass the filtering, to see if the filter is the
> problem. (For example, foomatic's PostScript filter adds page counting
> stuff to the input.)
>
> It's also worth noting that you can just use 'lp -oraw ...' to achieve
> the same thing, without having to set up a special queue.
>
>   
Good to know....  I always forget how that works.  :-)  Thanks...



-- 
A rolling stone gathers momentum. 葛斯克 愛德華 / 台北市八德路四段

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